30 results about "Error tolerance" patented technology

A system, method, and computer-program product includes receiving a plurality of vector embeddings having an initial dimensionality and projecting the plurality of vector embeddings into lower-dimensional spaces using at least two different dimension reduction algorithms to generate corresponding sets of projected vector embeddings. Each set of projected embeddings may be quantized and nearest neighbors for the original embeddings and for each quantized set of projected embeddings may be calculated. Additionally, a neighbor preservation metric may be evaluated for each quantized set by comparing its nearest neighbors to those of the original embeddings. Based on the neighbor preservation metrics and a predefined error tolerance, an optimal compression configuration may be selected.

Disclosed in the embodiments of the present application are a data storage method and apparatus, a device, and a non-transitory readable storage medium. According to the embodiments of the present application, F parity blocks occupying blank storage areas are added to a RAID system, which not only increases error tolerance but also eliminates the need for additional parity disks. During data storage, corresponding original check codes are solved according to an original encoding method, and additional check codes located on the parity blocks are solved simultaneously. Thus, it is possible to recover more erroneous data based on the original check codes and the additional check codes. When an error occurs in a disk in which any block in a stripe is located and data loss occurs in other blocks of the same stripe, the corresponding data can still be recovered.

Data security for a dataset in interactive query or operation from users regarding data stored in the dataset is provided. A method for providing data security for the dataset in secure data computation and communication includes generating a query result corresponding to the user query for the dataset, determining a magnitude range of the query result, and generating an amount of random noise data based on the magnitude range. The amount of random noise data is calibrated by adjusting at least one of a first tunable parameter within a first range and a second tunable parameter within a second range of a differential privacy (DP) configuration. A noise-laden query result is generated by applying the noise data to the query result to satisfy an error tolerance level.

The invention relates to the technical field of numerical control machining, in particular to a CNC closed-loop control method based on a dynamic feature model in a CAD / CAM environment. The method comprises the following steps: extracting a tolerance mark value of each processing surface in a CAD model, and mapping the tolerance mark value into an error tolerance budget of a corresponding track segment; the geometric curvature and the feeding speed set value of each track section in the machining program are analyzed from the CAM system, and the predicted contour error of each track section at the current speed is calculated according to the geometric curvature and the feeding speed set value; comparing the predicted contour error of each trajectory segment with the corresponding error tolerance budget, and calculating a tolerance margin; and marking the track section of which the tolerance margin is a negative value as an error overrun section. According to the method, tolerance transfer is carried out from the tolerance surplus section to the error over-limit section, so that error tolerance resources are redistributed among different track sections, and the stability and adaptability of processing beat control under a complex processing path are enhanced.

The invention provides a distributed new energy asset chaining method and system based on error control, and belongs to the field of block chain technology and asset digitization. According to the method, operation data under a chain are obtained, reported through a plurality of independent oracle machine nodes and aggregated on the chain to form a consensus state, and then the consensus state is verified according to error tolerance parameters. If the verification is passed, updating a corresponding real world asset token state; and if the verification is not passed, the token is placed in a function-limited risk state, and the chain interaction of the token is limited. According to the method, the data error is converted into a manageable state on a chain instead of a system exception, so that the problem that the availability of the system is reduced due to the data error in the prior art is solved, and the robustness of the system is improved.

The invention relates to the technical field of numerical control machine tools, and provides a nonlinear error control method and system for a numerical control machine tool, and the method comprises the steps: constructing a nonlinear error dynamic calculation model fusing the axial speed and acceleration constraints, and traversing the time nodes of an interpolation period between two adjacent cutter location points, obtaining a nonlinear error value of each time node according to the nonlinear error dynamic calculation model, and obtaining a maximum nonlinear error and a corresponding actual position; taking two adjacent cutter location points and the actual position of the maximum nonlinear error as fitting feature points, and constructing a nonlinear error equivalent curvilinear equation by adopting a piecewise quadratic function fitting method; performing error control according to the nonlinear error equivalent curve equation and the error allowable value, if the nonlinear error of the interpolation section meets the precision requirement, not performing optimization, and if the nonlinear error of the interpolation section does not meet the precision requirement, performing interpolation point optimization processing to obtain a theoretical trajectory. According to the invention, the error control accuracy can be improved.

The application relates to the technical field of structural design and optimization, and particularly discloses a structural error tolerance model construction method for compartment connection positioning, which comprises the following steps: acquiring real point cloud data of a bolt connection pair through three-dimensional laser scanning, realizing parameterized digital geometric modeling in combination with a deep neural network, and giving material properties and adaptive mesh division; generating a dynamic load sequence based on a vehicle driving condition, applying the dynamic load sequence to the model, and extracting full-field displacement vector data by using a digital image correlation technology; further identifying a micro-slip area of a contact interface, and calculating an energy dissipation index of the micro-slip area; establishing a quantitative mapping relationship between the energy dissipation and fatigue life through experiment calibration, taking a target life as a constraint, iteratively optimizing key design parameters by using a pattern search method, and finally outputting a connection structure scheme meeting the durability requirement.

The application provides an error upper bound device, a determination method, a medium, a terminal and a program product suitable for dynamic precision floating point multiply-accumulate operation, comprising: a feature acquisition module for acquiring a truncation compensation factor of each operand and an accumulator tolerance factor; a local threshold allocation module for allocating a local error threshold for the current multiply-accumulate operation according to a preset global error tolerance, a remaining term number, a remaining budget, an energy consumption mode and the accumulator tolerance factor; a bit budget formula calculation module for calculating the actual precision supply and precision demand of each path respectively; a determination and feedback module for determining according to the actual precision supply and precision demand calculated by each path; if each path passes, a precision pass signal is fed back; otherwise, a precision upgrade mechanism is triggered. The application can give a deterministic error upper bound for the truncation error of each multiply-accumulate operation, and ensure that the global precision target is met.

The utility model provides an aluminum grating curtain wall adjustable installation component which comprises a sliding rod, a connecting piece, an adjusting piece and an installation frame, and the sliding rod extends in the left-right direction. The connecting pieces are fixedly installed at the two ends of the sliding rod and used for being connected with a keel. The adjusting part is arranged on the sliding rod in a left-right position adjustable mode. The adjusting part comprises a vertical adjusting mechanism and a telescopic rod, a sliding frame with the vertical position adjustable is arranged on the vertical adjusting mechanism, the telescopic rod is fixedly installed on the front side face of the sliding frame, and the telescopic rod can extend in the front-back direction; the installation frame is fixedly connected to the front end of the telescopic rod, the installation frame is used for being connected with the aluminum grating unit, and the adjustable installation component of the aluminum grating curtain wall can be adjusted in three directions, so that the aluminum grating unit and the installation component can be connected firstly, secondary adjustment can be conducted on site, the error tolerance is improved, on-site disassembly and assembly are not needed, and manpower is saved.

A data storage device and a screening method of error tolerance thereof includes: writing data to data blocks of the data storage device; reading the written data of the data blocks as read data; comparing the read data and the written data of each data column in the data blocks to calculate the error bit number of each data column, and to calculate the error bit number of each block including a plurality of data columns, respectively; selecting a block with the largest error bit number to record a data column with the largest error bit number in the block as a damaged data column; calculating the difference between the error bit number of the block and a first threshold value to store the difference in an error tolerance list until the number of damaged data columns is equal to a second threshold value; and selecting the difference with the largest positive integer in the error tolerance list as the error tolerance.

The invention discloses an intelligent verification method for time series data of a transformer substation based on object model mapping, belongs to the technical field of intelligent power grids, and aims to solve the problems of rule lag, poor error tolerance and high data dependence in the prior art. S2, multi-source data mapping normalization is carried out; s3, checking the self-adaptive threshold value of a single measuring point; s4, multi-measuring-point correlation constraint verification is carried out; s5, fusing and outputting multi-source verification results; according to the method, through a dual verification mechanism formed by single-measurement-point adaptive threshold verification and multi-measurement-point correlation constraint verification, the physical law and the real-time operation state are combined, so that the complex anomaly can be identified more accurately, and the false alarm rate and the missing report rate of a single method are remarkably reduced.

This invention provides a video encoding method that can improve the error tolerance of video decoding using interpretation. [Solution] The video encoding method derives a first candidate having a first predicted motion vector based on a first motion vector used to encode a first block, determines whether the number of one or more candidates including the first candidate is less than the maximum number of candidates, and if the number of one or more candidates including the first candidate is less than the maximum number of candidates, derives a second candidate having a second predicted motion vector, encodes an index corresponding to the candidate having the predicted motion vector, the candidate is one of a plurality of candidates including the first candidate and the second candidate, and the maximum number of candidates is the same for all blocks included in the slice.

A communication method and a related device are applied to the technical field of communication. The communication method comprises the following steps: a first communication device generates a first transport block (TB) and sends the first TB to a second communication device, and correspondingly, the second communication device receives the first TB; wherein the first TB comprises at least one coding block (CB), at least one cyclic redundancy check (CRC) code corresponding to at least one bit segment exists in the at least one CB, and the at least one bit segment comprises a part of bits in the at least one CB; and the position of the at least one bit segment in the at least one CB is related to the fault-tolerant capability of the bits in the at least one CB. Through the communication method, the data transmission efficiency can be improved.

This invention belongs to the technical field of CNC machine tool control systems, specifically relating to a multi-axis control system and method for CNC machine tools based on real-time optimization. It includes: a physical digital twin kernel, used to dynamically calculate the physical limit performance surface covering the dynamic constraint boundary based on real-time acquired tool, workpiece, and machine tool status information; a real-time dynamic path optimizer, used to dynamically reconstruct the motion trajectory within a preset error tolerance channel by combining the physical limit performance surface with geometric path points within a predetermined future time window through a fusion algorithm within the control cycle; an error compensation pre-simulation module, which uses a reinforcement learning architecture to identify systematic deviation patterns and generate forward-looking feedforward compensation signals; a data acquisition feedback unit, used to construct a closed-loop feedback link between perception and execution; and a servo drive execution unit, which drives the coordinated movement of each axis of the machine tool according to instructions. This invention ensures high precision while improving feed efficiency and machining robustness.

The application provides a video decoding method, device and equipment and a storage medium. The video decoding method can intelligently identify different error types in the process of video streaming decoding, and execute error-tolerant processing instructions matched with the error types according to the actual error types encountered, without immediately interrupting the decoding process, thereby forming a gradual error recovery mechanism, which is beneficial to improving the error tolerance of the entire video streaming decoding process.

The application provides a kind of distributed new energy asset chain method and system based on error control, belongs to the field of blockchain technology and asset digitization.The method obtains off-chain operation data, reports through multiple independent oracle nodes and aggregates on the chain to form a consensus state, and then checks the consensus state according to the error tolerance parameter.If the check is passed, the corresponding real-world asset token state is updated;if the check is not passed, the token is placed in a function-limited risk state, and its on-chain interaction is limited.The application converts data errors into a manageable state on the chain rather than a system exception, solving the problem of reduced system availability caused by data errors in existing technology and improving the robustness of the system.

This application discloses a modular color-separation fixture for multi-color ribbons on rail vehicles, relating to the field of rail vehicle technology. The color-separation fixture includes: at least one color-separation fixture plate; and multiple painting through-holes disposed on the color-separation fixture plate. The multiple painting through-holes are divided into at least one group, and the painting through-holes in each group are arranged on the color-separation fixture plate according to a preset arrangement and preset intervals. This application, by combining the painting through-holes on the outer edge and inside of the color-separation fixture plate with a preset arrangement, effectively solves the problems of low accuracy, complex operation, and low error tolerance of traditional positioning and marking methods, thereby improving color-separation painting accuracy, painting efficiency, and construction accuracy.

The invention provides an error upper bound device suitable for dynamic precision floating point multiply-accumulate operation, a judgment method, a medium, a terminal and a program product. The error upper bound device comprises a feature acquisition module, a calculation module and a calculation module, wherein the feature acquisition module is used for acquiring a truncation compensation factor of each operand and an accumulator tolerance factor; the local threshold value distribution module is used for distributing a local error threshold value for the current multiply-accumulate operation according to the preset global error tolerance, the residual term number, the residual budget, the energy consumption mode and the accumulator tolerance factor; the bit budget calculation module is used for calculating the plurality of error paths to obtain the actual precision supply and precision demand of each path; the judgment and feedback module is used for judging according to the actual precision supply and precision demand calculated by each path; if each path passes, feeding back a precision passing signal; otherwise, triggering a precision upgrading mechanism. According to the method, a deterministic error upper bound can be given for the truncation error of each multiply-accumulate operation, and the global precision target is ensured to be met.

This application relates to the field of communication technologies, and discloses a communication method and apparatus. The method includes: An access stratum of a first device receives a first bit set, a second bit set, first check information, and second check information from a second device; performs integrity check on the first bit set based on the first check information and a first threshold; and performs integrity check on the second bit set based on the second check information. According to the foregoing method, the access stratum of the first device may separately check the first bit set (an error-tolerant bit set) and the second bit set (a non-error-tolerant bit set), so that a feedback delay or a retransmission delay is reduced while an error tolerance requirement is met, thereby improving user experience.

The invention provides a millimeter-level adaptive dynamic step size solving method and device, a terminal and a medium. The method comprises the following steps: acquiring historical step size information, variable order solution information, variable historical information, local grid feature length information, historical step size space information and error tolerance information; obtaining a step length time error according to the variable order solution information and the variable historical information; obtaining a step space error according to the local grid feature length information and the historical step space information; and according to the historical step length information, the step length time error, the step length space error and the error tolerance information, obtaining a millimeter-level adaptive dynamic step length. The step length can be flexibly adjusted according to the dynamic characteristics of the system, and high precision and high efficiency of multi-physics coupling simulation are achieved.

The apparatus may be configured to receive a plurality of codewords associated with a plurality of messages, where the plurality of codewords comprises a first subset of the plurality of codewords associated with a first subset of the plurality of messages and a second subset of the plurality of codewords associated with a second subset of the plurality of messages, wherein the first and second subset of codewords are associated with first and second RM codes, wherein the first RM code is a subcode of the second RM code, decode the plurality of codewords using a decoding method that is associated with a first error tolerance for the first subset of the plurality of codewords that is higher than a second error tolerance for the second subset of the plurality of codewords, and output a plurality of decoded codewords associated with the plurality of messages.

Various embodiments provide methods for configuring a phase-change random-access memory (PCRAM) structures, such as PCRAM operating in a single-level-cell (SLC) mode or a multi-level-cell (MLC) mode. Various embodiments may support a PCRAM structure being operating in a SLC mode for lower power and a MLC mode for lower variability. Various embodiments may support a PCRAM structure being operating in a SLC mode or a MLC mode based at least in part on an error tolerance for a neural network layer.

The invention relates to the technical field of test paper electronization, in particular to a paper teaching aid identification method and device based on Chinese feature codes, equipment and a medium, and the method comprises the following steps: S1, feature code design; s2, embedding a feature code; step S3, data association; s4, carrying out image recognition and matching; and S5, carrying out region cutting. The method is ingenious in design, basic attributes of teaching aids do not need to be transformed, original layout and paper materials of paper teaching aids do not need to be changed, reading experience of teachers and students is not affected, and printing cost is not increased; the method has a high error-tolerant rate, character recognition errors are effectively avoided, and the accuracy of system data matching is improved; efficient positioning and recognition can be realized, and the recognition efficiency is greatly improved; and the system can be directly connected with a teacher-student end webpage, so that quick checking and data analysis of a correction result are realized.

The invention relates to the technical field of constructional engineering, in particular to a reserved embedding error compensation control method combined with three-dimensional positioning modeling, which comprises the following steps of: S1, embedding space tolerance information based on component three-dimensional coordinates, construction surface elevation and node geometrical relationship in a design drawing; constructing a three-dimensional positioning adaptive model and outputting a structure tolerance configuration set; s2, actual attitude information is collected in the installation process, the offset and the rotation angle are calculated, and the platform is guided to conduct micro correction according to the minimum interference path; and S3, after correction is completed, a rigid limiting mechanism is activated according to boundary constraint, an expansion anchoring assembly is called for reverse jacking, and stable locking in error compensation is achieved. According to the method, the three-dimensional positioning adaptive model driven by the tolerance constraint is constructed, and real-time attitude correction and a multi-stage mechanical locking mechanism are fused, so that high-precision positioning and stable closing locking of the reserved embedded component in an error tolerance interval are realized.

The present application relates to the technical field of data processing, and specifically relates to a power grid system file segmentation encryption transmission method and system, which comprises obtaining work order data of a power work order and classifying and encrypting according to information types, obtaining display device parameters and determining preset error tolerance thresholds according to information types, optimizing display parameters such as two-dimensional code display pixel size and display frame interval time through a genetic algorithm, and minimizing transmission frame numbers on the premise of meeting error tolerance requirements of each information type. The optimized display parameters are applied to two-dimensional code conversion and display transmission of intranet encrypted content, and the extranet reads a module to collect two-dimensional code sequences and complete analysis, decryption and restoration. Different transmission parameters including display pixel size and frame sequence time intervals are set for different information types to ensure efficient and accurate transmission of power work order data in the shortest time.

The invention relates to the technical field of laser welding, in particular to automatic laser welding equipment for building construction materials. The device comprises a first swinging arm, a rotating seat rotationally connected with one end of the first swinging arm, and a clamping seat detachably connected with the other end of the rotating seat; the outer ring face of one end of the clamping base is sleeved with a rotating wheel, the circle center of one side of the rotating wheel is fixedly connected with a threaded rod, the outer surface of the threaded rod is sleeved with a threaded sleeve, and an inner threaded groove is formed in the inner side wall of the threaded sleeve. Through the arrangement of a rotating wheel, a threaded rod, a threaded sleeve, a linkage rod and other structures, extension treatment of the position of a welding head can be conveniently achieved when errors occur in the stroke distance calculated in advance during subsequent use, so that the stroke distance and the like of the mechanical arm do not need to be adjusted again, and the practicability and flexibility of the whole device are improved; the whole mechanical arm can have errors to a certain degree, and the mechanical arm has a certain error-tolerant rate.

This utility model relates to the field of automated conveying production technology and discloses an automated chain conveyor that can prevent goods from tilting. The device uses bolts to install two sets of side baffles on the upper surface of the conveyor chain. These side baffles prevent goods from colliding with the photoelectric sensor due to tilting, thus avoiding damage. Simultaneously, because the side baffles have flared sections at their inlet and outlet, they can guide tilted goods into the conveying area. Furthermore, the sloping structure on the upper part of each set of side baffles expands the entry range, reducing the initial placement accuracy requirements of the stacker crane and increasing the error tolerance rate. This significantly reduces the likelihood of goods being placed on the side baffles. In addition, reinforcing ribs provide stable support and extend service life.

The apparatus may be configured to receive a plurality of codewords associated with a plurality of messages, where the plurality of codewords comprises a first subset of the plurality of codewords associated with a first subset of the plurality of messages and a second subset of the plurality of codewords associated with a second subset of the plurality of messages, wherein the first and second subset of codewords are associated with first and second RM codes, wherein the first RM code is a subcode of the second RM code, decode the plurality of codewords using a decoding method that is associated with a first error tolerance for the first subset of the plurality of codewords that is higher than a second error tolerance for the second subset of the plurality of codewords, and output a plurality of decoded codewords associated with the plurality of messages.

The application relates to the technical field of embedded system software updating, and discloses an embedded software online upgrading method, device, storage medium and computer equipment, which comprises the following steps: determining an upgrading stage by reading a main state flag bit and a counting flag bit in an embedded system through a boot program; the boot program and / or an application program receive, check and write a program according to a current stage, and redundantly store a new version program; the counting flag bit is used to record the number of operation failures, and when the number of failures exceeds a threshold value, the system is migrated to a backup recovery stage, and the boot program performs recovery based on a backup of a historical version program. The above method introduces a phased state management of double-flag-bit cooperation, retry control based on a failure number threshold value and a recovery path of a preset backup, improves the state controllability, error tolerance and system self-recovery capability of an embedded software online upgrading process, and further meets the requirements of high-reliability embedded scenarios such as medical devices and industrial control on upgrading robustness.

The disclosure provides a synchronization method, a synchronization device, and a transceiver device for multi-channel data transmission. The synchronization method transmits test data to N receiving devices, obtains a transmission cycle and N delayed playback timestamps based on the information fed back by the receiving devices, the data packet preparation time, a first time, and a predetermined error tolerance time; transmits audio data packets to the N receiving devices, obtains an existing data playback duration and a time difference based on the acknowledgment packets fed back by the receiving devices; adjusts the predetermined error tolerance time to a target error tolerance time according to the comparison result between the time difference and a predetermined time difference threshold. This achieves real-time and timely adjustment of the delayed playback time of audio data packets according to the actual situation of data transmission, thereby achieving the purpose of audio synchronization in multi-channel wireless transmission.